--- Oh, it’s you! I ___________ you.---- I have just had my hair cut, and I am wearing new glasses. 
#100135
A
didn’t recognize
B
don’t recognize
C
haven’t recognized
D
hadn’t recognized
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By the time the fire-engine arrived, the fire        by the inhabitants.   
#102035
A
put out
B
had been put out
C
was put out
D
had put out
Mr. Lin ______ when I go to see him on Sundays. 
#101757
A
is always working
B
was always working
C
always worked
D
has always worked